Aircraft Seat Track Foot Layout for Stable Smooth Translation
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Solution Overview
Problem
Existing aircraft seat translating systems face issues with stability and smooth translation due to roller bearings positioned in the center of the track, leading to instability, rocking, and increased floor loads, and require additional components for vertical adjustment.
Innovation Solution
The system positions roller bearings at the outermost portions of the seat structure, integrating them with the track foot to pivot during translation, eliminating the need for vertical adjustment and reducing parts, while ensuring smooth movement and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If roller bearings are positioned in the center of the track, then the translation mechanism is compact, but the stability deteriorates and rocking movement occurs
Solution Approach 1:
The patent transitions the roller bearing position from a central single-point configuration to a distributed configuration at the outermost portions of the seat structure. This spatial redistribution in multiple dimensions eliminates the rocking motion caused by central positioning while maintaining translation functionality.
2Device complexity
If roller bearings are positioned in the center of the track, then the structure is simplified, but the degrees of freedom are constrained and translation smoothness deteriorates
Solution Approach 1:
The patent divides the translation support function into multiple segments by positioning separate roller bearings at different outermost portions of the seat structure. This segmentation allows each roller to independently handle translation without interfering with attachment countersinks, thereby improving translation smoothness while maintaining structural simplicity.
3Adaptability or versatility
If track feet and rollers are separately positioned, then the adjustment flexibility is improved, but the space competition increases and stability deteriorates
Solution Approach 1:
The patent merges the track foot and roller bearing into an integrated assembly positioned at the outermost portions of the seat structure. This combination eliminates the space competition between separately positioned components while maintaining the necessary adjustment flexibility through the integrated design that allows the roller to pivot during translation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances stability and smooth translation of aircraft seats by reducing parts and eliminating binding, thereby improving user comfort and reducing floor loads.
Implementation Method 1
The one or more roller bearings may be configured to interface with a top surface of the floor track and coupled to the track foot via one or more axles
Data Source
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AI summary
An aircraft seat (102) may include an integrated tracking system (100). The tracking system may include at least one track foot (204) and one or more roller bearings (202). The track foot may include one or more axles (216) and be able to interface with a portion of an aircraft seat track. The one or more roller bearings may be coupled to the one or more axles of the track foot and interface with a top surface of the aircraft seat track to aid in the translation of the aircraft seat.